Nei guan

Nei guan (P6, Chinese: 内关) is an acupoint, a point of the skin that is stimulated, with various techniques, in the practice of acupuncture. It is located on the wrist, along the pericardium meridian.^[1]

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Therapeutic uses and scientific validation

The Cochrane Collaboration, a group of evidence-based medicine (EBM) reviewers, reviewed the use of Nei guan (Acupoint P6) for nausea and vomiting, and found it to be effective for reducing post-operative nausea, but not vomiting ^[2]. The Cochrane review included various means of stimulating P6, including acupuncture, electro-acupuncture, transcutaneous nerve stimulation, laser stimulation, acustimulation device and acupressure; it did not comment on whether one or more forms of stimulation were more effective. EBM reviewer Bandolier said that P6 acupressure in two studies showed 52% of patients with control having a success, compared with 75% with P6 acupressure^[3]. One author of an article published in the Scientific Review of Alternative Medicine disagreed ^[4].

References